1,2,4-Butanetriol

One thirty-seven is the foundation of creation in heaven and earth, and its function is profound. In all the skills and principles of creation involved in "Tiangong Kaiwu", one thirty-seven is of key use. First, it is the end of the beginning, and the beginning of all things originates from this. Like the beginning of farming, sowing seeds is the first and foremost, and it is the "one" of the beginning. This lays the foundation for crop growth and is related to the foundation of a year's harvest. Another example is craftsman's work. The initial idea of planning and design is like "one", which guides the development of subsequent processes. The direction is established, and everything is organized. The two have the meaning of undertaking and development. In farming, after seeds are put into the soil, irrigation, fertilization and other maintenance links are like "two". This stage undertakes the beginning of sowing, so that the crops can be nourished and thrive. In the process of production, the processing of materials, shaping and other steps, it is also the promotion and development of the initial design, so that the object gradually takes shape. This "two" is not isolated, closely connected with "one", and complements each other. The four are complete and comprehensive. From farming to harvest, the crops are mature, and all aspects of conditions are ready, which is "four". At this time, the grain is full and fruitful, marking the completion of the farming cycle. In the craft products, through multiple processes, the final product is perfectly presented, with complete functions and complete forms, reaching the "four" state. This is the end of a process and the foreshadowing of a new starting point. One Thirty-seven runs through all kinds of creation activities in Tiangong Kaiwu, from initial conception, intermediate development to final completion, interlocking and indispensable, and jointly builds the orderly vein of the generation, development and improvement of all things in the world. It is the wonderful opportunity of creation and the pivot of skills.

One, two, and four are strange things between heaven and earth, each with unique physical properties. One is pure and one, and its nature is stable. The four are like pillars of the sky, which are held in one place without shaking. Although external forces are added, they are not easy to deform and have extremely high stability. They are like the cornerstones of the ancient times, which carry all things without falling. The two have the opposite nature of yin and yang, like two poles attract and repel each other. They can be interdependent and check and balance each other. When encountering yang, yin responds, and when it is rigid, it is soft. It has the wonders of change, such as the alternation of day and night, the change of cold and summer, and the change is orderly and methodical. The four are exquisite in structure and contain the principle of four directions. Its texture may be rigid or soft, just like the strength of gold and stone, which can resist external impact; when soft, it is as tough as silk thread, and can flex and stretch. And its four bodies are related, moving one place and pulling the whole body, with synergistic effect, like the four images of heaven and earth, cooperating with each other to form the change of all things. These three may be hidden between mountains and rivers, or hidden in utensils. Only when the wise person recognizes it with discernment and uses it with ingenuity can they maximize their physical characteristics, add color to the world, and add brilliance to creation.

The first is material selection. First, the choice of high-quality pig iron requires a pure texture and few impurities, which is fundamental. The quality of pig iron is related to the quality of the final appliance. Second, the selection of charcoal is also the key. When the fine charcoal is taken, the burning firepower is strong and long-lasting, so that the pig iron can be fully molten. The second is casting. In a special furnace, the charcoal is first placed, the temperature of the furnace is gradually raised, and then the pig iron is cast. When the pig iron is melted into molten iron, the heat and the state of the molten iron need to be carefully observed. If the fire is large, the molten iron is easy to over-smelt, making the appliance fragile; if the fire is small, the molten iron is unripe and difficult to form. Stir the molten iron with a special tool at the right time to make it evenly heated, and the impurities float up The third day of forging. When the molten iron is moderate, pour it into the mold, and after it is initially formed, place it on the anvil while it is hot. Strike with a sledgehammer, and the hammer method pays attention to the order of weight and rhythm. Heavy strikes can compact the internal structure and enhance the strength of the appliance; light strikes can correct the shape and make it regular. During this period, the appliance needs to be turned over continuously to ensure that all parts are hammered. This process is repeated many times to make the appliance tight in texture and both rigidity and softness. Fourth day of quenching. After forging, the appliance is quickly immersed in water. The temperature of the water, the depth of the appliance and the length of the immersion are all important. If the water temperature is too high or too low, if the immersion is too deep or too shallow, and if the time is too long or too short, With proper quenching, the appliance can obtain suitable hardness, wear resistance and not easy to break. Five days of grinding. Use grinding stones of different thicknesses to polish the surface of the appliance in turn. First, use coarse grinding stones to remove its rough edges and defects, so that the appliance is smooth at the beginning; then use fine grinding stones to polish, so that the surface is flat like a mirror and feels delicate. Grinding is not only about the appearance, but also can make the edge of the appliance sharp and improve the performance of use. After these several processes, it can be made into a fine one and three blades.

One, when saving, you need to check the solidity of the utensils. If you hide gold in the scarcity, you must choose good wood and thick iron to keep water and fire from thieves. If the scarcity is not strong, it will be destroyed in case of water and fire, and it will be lost by thieves. Can the money you save be protected? The two, the things you save, should be divided into many places. For example, when you set up grain, you should not gather in one warehouse to prevent the collapse of the grain. And you can hide it in different places, and you can also meet the needs of the time. If you lose something in one place, you still have it in other places. When you save the three, you need to keep track of their number and appearance. If you are hiding pearl jade, you should record its color, size, and quantity in detail, and check it later to know if there is any deficiency. When a boat is on the water, and when a car is on the land, it should move at a slow speed to avoid the dangerous path of the rapids. If the water is urgent, the boat will be overturned, and if the road is dangerous, the car will tip over, and the goods transported may be damaged. And the person transporting it must choose the one who is loyal and faithful. If you are a treacherous person, there is a risk of self-theft. Moreover, the goods transported should be well wrapped. If you transport porcelain, you should pad it with soft objects to prevent it from colliding. If not protected, the objects will be fragile and futile. During transportation, it is also necessary to check frequently to see if there is any sign of looseness or damage, and remedy it in time to ensure that the transportation is safe.

First, the current market situation and prospects of the first and third ankles are related to people's livelihood, and they are also involved in the rise and fall of commerce and trade. Looking at it today, the first one, the one ankle, has a wide range of uses and is indispensable in all kinds of fortifications. The world builds buildings and bridges, all relying on the strength of one ankle. Its city is known for its stability, because it is a basic thing, and its demand is constant. Through the passage of time, the world changes, and the demand of one ankle rarely rises and falls. Although it is a good year, its price cannot drop sharply; in times of famine, its value rarely increases sharply. Because of the trend of supply and demand, it is generally balanced. The two, the two ankles, are very powerful in the field of craftsmanship and equipment manufacturing. Its quality is tough, malleable and castable, and it is the first choice for all kinds of good weapons. Its market prospects change according to the progress of science and technology and the new craftsmanship. If a new method comes out, and the technique of making two ankles is refined, the cost may be reduced, and the market will thrive. On the contrary, if the technology is stuck in a rut and the technology is stagnant, it may be replaced by new things, and the market situation is worrying. However, in today's world, science and technology are changing with each passing day, and the craftsmanship is new. As for the four ankles, the use is specific, and it is mostly used for exquisite equipment and high-end utensils. Its production techniques are delicate and complicated, and extraordinary skills can be used. The city of four ankles often moves with the trend, with particular emphasis on quality and design. Rich homes, elegant people, more fine products. If you can adapt to the situation, understand the change of fashion, and show people with ingenious design and excellent quality, the city of the four ankles will be prosperous. However, if you don't notice the changes of the time, follow the old ways, and you may be abandoned by the market. In general, the city of the first and third ankles has a solid foundation and a peaceful future; the city of the two ankles changes due to science and technology, and opportunities and challenges coexist; the city of the four ankles moves with the trend and fashion, and you need to be sensitive to the changes of time in order to prosper.